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    Effects of Organic Substrates on Earthworm Behavior : Do Worms Show a Preference?

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    File(s)
    PostSpr18.pdf (1.846Mb)
    PostSpr18.pptx (14.63Mb)
    Date
    2018-05
    Author
    Post, Alanna
    Plack, Naomi
    Suzali, Sorfina
    Modji, Komi
    Wellnitz, Todd A.
    Metadata
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    Abstract
    From the time of the last glaciation, earthworms were absent from northern soils, until non-native species were accidently imported from Europe in the 1600’s. Earthworms are “ecosystem engineers” that can modify soil structure, alter soil chemistry, and accelerate nutrient cycling. These activities increase the fertility of agricultural soils but can also bring irreversible changes to natural ecosystems. In each case earthworms play an important role, but while many studies have focused on earthworm impacts, fewer have investigated the factors that influence their movement. We conducted field and laboratory experiments to study how food influences earthworm aggregation and burrowing. The field experiment examined the effect of food quality on earthworm aggregation; the laboratory experiment examined how the presence or absence of food affected earthworm burrowing.
    Subject
    Earthworms
    Soil aggregation
    Food selection
    Posters
    Permanent Link
    http://digital.library.wisc.edu/1793/79166
    Type
    Presentation
    Description
    Color poster with text, photographs, and graphs.
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